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ZA-27 vs. R05400 Tantalum

ZA-27 belongs to the zinc alloys classification, while R05400 tantalum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ZA-27 and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 78
190
Elongation at Break, % 2.0 to 4.5
1.1 to 28
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 31
69
Tensile Strength: Ultimate (UTS), MPa 400 to 430
210 to 540
Tensile Strength: Yield (Proof), MPa 260 to 370
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 130
140
Specific Heat Capacity, J/kg-K 530
140
Thermal Conductivity, W/m-K 130
59
Thermal Expansion, µm/m-K 26
6.5

Otherwise Unclassified Properties

Density, g/cm3 5.0
17
Embodied Water, L/kg 570
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1 to 18
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 890
50 to 420
Stiffness to Weight: Axial, points 8.6
6.2
Stiffness to Weight: Bending, points 28
11
Strength to Weight: Axial, points 22 to 24
3.6 to 9.0
Strength to Weight: Bending, points 24 to 25
4.8 to 8.8
Thermal Diffusivity, mm2/s 47
25
Thermal Shock Resistance, points 14 to 15
13 to 32

Alloy Composition

Aluminum (Al), % 25 to 28
0
Cadmium (Cd), % 0 to 0.0060
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 2.0 to 2.5
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.1
0 to 0.010
Lead (Pb), % 0 to 0.0060
0
Magnesium (Mg), % 0.010 to 0.020
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.020
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.030
Silicon (Si), % 0 to 0.080
0 to 0.0050
Tantalum (Ta), % 0
99.7 to 100
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 69.3 to 73
0